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38x75+45x25简便运算怎么做

=38×25×3+45×25 =25×114+25×45 =25×(114+45) =25×159 =25×160-25×1 =4000-25 =3975

42x75+42x25 =42x(75+25) =42x100 =4200 希望帮到你 望采纳 谢谢 加油

用简便方法计算 31x75十62x75十93x25 =75×(31+62)+93×25 =75×93+93×25 =93×(75+25) =93×100 =9300

23×75+69×25 =23×3×25+69×25 =69×25+69×25 =69×50 =69×100÷2 =3450

189x25=190x25-1x25=4750-25=4725 37x75=30x75+7x75=2250+525=2775

原式 =138x(3x25)+(6x2)x25 =138x3x25+12x25 =414x25+12x25 =(414+12)x25 =426x25 =400x25+20x25+6x25 =10000+500+150 =10650

原式 =89x25+37x3x25 =89x25+111x25 =(89+111)x25 =200x25 =5000 供参考。

=25x(25+75) =25x100 =2500

71×25+71×75 =71×(25+75) =71×100 =7100 你好,本题已解答,如果满意 请点右下角“采纳答案”。

原式=35×(75+25) =35×100 =3500 满意采纳奥

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